Help on animal crossing wild world?

K... I have some cheats... its money cheats... you get a shovel go up to a rock dig holes around you so you dont bounce back and hit away... the most someone has ever gotten is 20,000 bells. another cheat is put 50,000 bells into your account, then save and exit and change your ds settings so that it is 2099. go back into your game and you will have a letter from the city hall that says you have 99,999 bells!!! these do work! i have used htese several times. i use the time travel trick more than anything... and thats how im rich in the game and have no morgage!!!